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patch: transform rework #16

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patch: transform rework #16

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1 change: 1 addition & 0 deletions src/mapper.js
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,7 @@ export const mapper = ({

const renamed = {
...decrypted,
...transformed,
...Object.keys(rename).reduce((a, k) => {
if (transformed[k]) a[rename[k]] = transformed[k];
return a;
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95 changes: 94 additions & 1 deletion test/unit/mapper.test.js
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Expand Up @@ -71,7 +71,100 @@ describe('mapper.js', () => {
f9: true,
});
});

it('should transform default if present in call', async () => {
const mappings = mapper({
defaults: { f9: true },
omit: [...DEFAULT_OMIT_FIELDS, 'f1'],
rename: {
pk: 'id',
data: 'name',
f1: 'f2',
x1: 'else-coverage',
},
transform: {
f1: async (v) => v.toUpperCase(),
f3: (v) => v.toUpperCase(),
f9: (v) => 'else-coverage',
},
});
const mapData = await mappings({
pk: '1',
sk: 'thing',
data: 'thing0',
f3: 'test',
f1: 'v1',
f9: true,
});
expect(mapData).to.deep.equal({
id: '1',
name: 'thing0',
f2: 'V1',
f3: 'TEST',
f9: 'else-coverage',
});
});
it('should transform if not present in defaults', async () => {
const mappings = mapper({
omit: [...DEFAULT_OMIT_FIELDS, 'f1'],
rename: {
pk: 'id',
data: 'name',
f1: 'f2',
x1: 'else-coverage',
},
transform: {
f1: async (v) => v.toUpperCase(),
f3: (v) => v.toUpperCase(),
f9: (v) => 'will-transform',
},
});
const mapData = await mappings({
pk: '1',
sk: 'thing',
data: 'thing0',
f3: 'test',
f1: 'v1',
f9: true,
});
expect(mapData).to.deep.equal({
id: '1',
name: 'thing0',
f2: 'V1',
f3: 'TEST',
f9: 'will-transform',
});
});
it('should not transform default values', async () => {
const mappings = mapper({
defaults: { f9: true },
omit: [...DEFAULT_OMIT_FIELDS, 'f1'],
rename: {
pk: 'id',
data: 'name',
f1: 'f2',
x1: 'else-coverage',
},
transform: {
f1: async (v) => v.toUpperCase(),
f3: (v) => v.toUpperCase(),
f9: (v) => 'will-transform',
},
});
const mapData = await mappings({
pk: '1',
sk: 'thing',
data: 'thing0',
f3: 'test',
f1: 'v1',
});
expect(mapData).to.deep.equal({
id: '1',
name: 'thing0',
f2: 'V1',
f3: 'TEST',
f9: true,
});
});
it('should map an aggregate object', async () => {
const mapper1 = mapper({
rename: {
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